<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>通配符选择器</title>
  <style>
    * {
      color: pink;

    }

    /* *这里*号把所有标签html body div span li 等等的标签都改为了红色 */
  </style>
</head>

<body>
  <div>我的</div>
  <span>我的</span>
  <ui>
    <li>还是我的</li>
  </ui>
</body>

</html>